
Assystem, one of the world's leading independent nuclear engineering companies, is committed to accelerating the energy transition. We see ourselves as an activist in the development of nuclear energy, convinced that it is an essential part of the fight against climate change. 7,500 switchers, spread in 12 countries in Europe, Asia, Africa and the Middle East are working every day to make the energy switch by accelerating the development of nuclear and renewable energies, power grids, clean hydrogen projects and low-carbon transport. We design and supervise major projects through our engineering activities and accelerate our customers' digital transformation. We also develop new solutions to build faster and improve the performance of complex infrastructures. 55 years of experience have made Assystem a key partner of the world's largest industrial groups: CEA, EDF, ENEC, Enedis, Engie, Framatome, ITER, K.A. CARE, Naval Group, NICDC, Orano, RATP, Rolls Royce, Royal Commission, Sellafield, SGP, SNCF... Assystem is ranked in the Top 3 companies in the nuclear energy sector.
Open roles at Assystem
3 roles

Graduate Mechanical Engineer
Assystem
Bristol, UK
This entry-level multi-disciplinary nuclear engineering scheme focuses on mechanical systems development and the low-carbon energy transition, training recent mechanical engineering graduates over a two-year rotatably structured program to apply mathematical design principles, utilize professional CAD utilities, and solve complex real-world infrastructure challenges.Assystem is an international company with one mission: accelerate the energy transition around the world.Every day, our 8,000+ switchers located in 12 countries (Europe, Middle East, Pacific Asia & Africa) connect their six thousand billion neurons to tackle the task of the century: switching to low-carbon energy. We are a collective committed to making the energy switch. Sharing our knowledge, expertise and values allows us to innovate and think differently about the energy transition.Here is how you can be a part of that switch:Job DescriptionYour Future Team:Are you a Mechanical Engineering graduate ready to shape the future of energy? Join our exciting two-year Graduate Programme and be part of something bigger. Get hands-on with live projects, sharpen your technical and professional skills, and gain exposure across the nuclear industry.🎯 Why join the community of Switchers:✅ Access to mentors and technical experts 👩🏫👨🔧✅ Peer-to-peer learning through Graduate Forums 🧠🤝✅ An upskilling framework tailored to your development 📈🎓✅ The opportunity to rotate across industries, customers, and locations 🌍🛠️Your Missions:Over the two-year self-directed programme, you’ll gain unique insight into the nuclear industry. It all starts with broad exposure across teams and customers, evolving into discipline-focused work that aligns with your career ambitions. You’ll rotate through different teams and projects to grow your knowledge, skills, and behaviours. 🔁✨🎓 Qualifications / Skills to be successful:We’re looking for graduates who:📐 Have (or are expecting) a degree in Mechanical Engineering💡 Are curious about how things are designed and built🧮 Enjoy applying mathematical principles to solve real-world problems🛠️ Have an interest in tools like Inventor, SolidWorks, or AutoCAD🧩 Love tackling challenges and thinking logically🗣️ Can clearly communicate ideas and work well in a team🚀 Are self-motivated and eager to learnMany of our graduates also work towards professional registration or chartership, and we’ll be here to support you every step of the way. 🏅📚🔐 Additional Information:To join our Graduate Scheme, you must:🛂 Be a UK sole national and a UK resident🛂 Be able to obtain at least Baseline Personnel Security Standard (BPSS) clearance📦 Be open to relocation or travel within the UK (relocation support is provided!)🌈 Diversity & Inclusion:We are committed to equal treatment of candidates and celebrate diversity in all forms. 👥💬We believe that bringing together people from different backgrounds and perspectives is essential to creating innovative and impactful solutions.It’s your skills, talent, and bold ideas that matter most — not where you come from. So bring your unique contributions and help us shape the future. 🌍🚀
Posted 22 days ago

Graduate Safety & Risk Consultant
Assystem
Warrington, UK
Operating within a highly regulated clean energy framework, this two-year developmental scheme trains entry-level engineers and scientists to analyze system risks, assess engineering designs, and manage safety compliance across the lifecycle of nuclear facilities.Assystem is an international company with one mission: accelerate the energy transition around the world.Every day, our 8,000+ switchers located in 12 countries (Europe, Middle East, Pacific Asia & Africa) connect their six thousand billion neurons to tackle the task of the century: switching to low-carbon energy. We are a collective committed to making the energy switch. Sharing our knowledge, expertise and values allows us to innovate and think differently about the energy transition.Here is how you can be a part of that switch:Job DescriptionOur two-year Graduate Programme is designed to get you up to speed quickly, give you exposure to live projects, and help you develop both technical and professional skills.You’ll benefit from:Access to mentors and technical expertsPeer-to-peer learning through Graduate ForumsAn upskilling framework tailored to your developmentThe opportunity to rotate across industries, customers, and locationsOver the two-year self-directed programme, you’ll gain a unique insight into the nuclear industry. This starts with broad exposure across teams and customers and evolves into discipline-focused work that aligns with your career ambitions. Within our programme, there will be opportunities to rotate through different teams and projects to help grow your knowledge, skills and behaviours. My profileWe’re looking for graduates who have (or are expecting) a degree in Engineering, Mathematics, Science, or a closely related discipline and who are interested in developing a career in nuclear safety within highly regulated environments. If you’re curious about how safety is designed into complex systems, enjoy structured problem-solving, and want to understand how risk is assessed, justified, and managed across the full lifecycle of nuclear facilities, this could be the ideal next step for you.To join our Graduate Scheme, you must be a UK sole national and a UK resident, as this is required for the type of work we do. You’ll also need to be able to obtain a minimum of Baseline Personnel Security Standard (BPSS) clearance, with some roles requiring higher levels of clearance. As part of the programme, you should also be willing to relocate or travel within the UK, and we’ll provide relocation support where needed. Diversity & InclusionWe are committed to equal treatment of candidates and foster all forms of diversity within our company. Bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and the ability to dare are what matter most. Bring your unique contributions and help us shape the future.We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.
Posted 23 days ago

Graduate Digital Engineering & Integration Engineer
Assystem
Bridgwater, UK
Operating within the critical low-carbon infrastructure sector, this two-year rotational graduate scheme focuses on integrating digital engineering tools, optimizing engineering data flows, and managing complex information systems for major nuclear projects like Hinkley Point C.⚡️💡 About AssystemAt Assystem, our mission is to accelerate the energy transition worldwide. Our 7,500 Switchers combine engineering excellence and project management expertise with advanced digital technologies. In the UK, we support landmark low-carbon infrastructure projects including Hinkley Point C, Sizewell C and emerging Small Modular Reactor (SMR) programmes. We work at the heart of complex nuclear new build initiatives, helping to deliver safe, efficient and future-ready energy solutions that power the UK’s transition to net zero.🤝 Why Join the Community of Switchers?You’ll be joining one of the three largest nuclear engineering companies in the world, working on some of the most significant clean energy projects in Europe. Assystem offers structured development, real project exposure and collaboration with experienced specialists across engineering and digital disciplines. Your future team supports nationally important infrastructure while fostering continuous learning, innovation and professional growth within a supportive environment.Job Description🚀 The Job MissionThis hybrid role is based in Bridgwater, and we can only consider candidates within commutable distance or those willing to relocate, with relocation support available.You will join our two-year Graduate Programme supporting digital engineering and integration activities. You will develop technical, systems and data skills while contributing to live nuclear projects.• Rotate across teams, projects and customers to broaden industry exposure• Support digital engineering integration across project lifecycle stages• Assist with data analysis to improve engineering information flows• Contribute to systems coordination within regulated project environments• Work with mentors and technical experts to develop discipline knowledge• Participate in Graduate Forums and structured peer learning sessions• Support digital tools implementation across engineering functions• Contribute to process improvement and data-driven decision initiatives• Develop understanding of information management in complex infrastructure projectsMy profile🛠 Essential Skills and Qualifications• Degree in Digital Engineering, Systems Engineering, Data Analytics or similar• Strong interest in digital integration within engineering environments• Understanding of how data supports engineering decision making• Analytical mindset with problem-solving capability• Strong written and verbal communication skills• Willingness to relocate or travel within the UK• Eligibility for BPSS clearance and UK sole nationality✔️ Desired Skills and Qualifications• Awareness of highly regulated industries such as nuclear or rail• Knowledge of systems thinking or lifecycle engineering principles• Experience with data visualisation or digital engineering tools• Interest in information management across complex projects
Posted 23 days ago

Graduate Mechanical Engineer
Assystem
Bristol, UK
This entry-level multi-disciplinary nuclear engineering scheme focuses on mechanical systems development and the low-carbon energy transition, training recent mechanical engineering graduates over a two-year rotatably structured program to apply mathematical design principles, utilize professional CAD utilities, and solve complex real-world infrastructure challenges.Assystem is an international company with one mission: accelerate the energy transition around the world.Every day, our 8,000+ switchers located in 12 countries (Europe, Middle East, Pacific Asia & Africa) connect their six thousand billion neurons to tackle the task of the century: switching to low-carbon energy. We are a collective committed to making the energy switch. Sharing our knowledge, expertise and values allows us to innovate and think differently about the energy transition.Here is how you can be a part of that switch:Job DescriptionYour Future Team:Are you a Mechanical Engineering graduate ready to shape the future of energy? Join our exciting two-year Graduate Programme and be part of something bigger. Get hands-on with live projects, sharpen your technical and professional skills, and gain exposure across the nuclear industry.🎯 Why join the community of Switchers:✅ Access to mentors and technical experts 👩🏫👨🔧✅ Peer-to-peer learning through Graduate Forums 🧠🤝✅ An upskilling framework tailored to your development 📈🎓✅ The opportunity to rotate across industries, customers, and locations 🌍🛠️Your Missions:Over the two-year self-directed programme, you’ll gain unique insight into the nuclear industry. It all starts with broad exposure across teams and customers, evolving into discipline-focused work that aligns with your career ambitions. You’ll rotate through different teams and projects to grow your knowledge, skills, and behaviours. 🔁✨🎓 Qualifications / Skills to be successful:We’re looking for graduates who:📐 Have (or are expecting) a degree in Mechanical Engineering💡 Are curious about how things are designed and built🧮 Enjoy applying mathematical principles to solve real-world problems🛠️ Have an interest in tools like Inventor, SolidWorks, or AutoCAD🧩 Love tackling challenges and thinking logically🗣️ Can clearly communicate ideas and work well in a team🚀 Are self-motivated and eager to learnMany of our graduates also work towards professional registration or chartership, and we’ll be here to support you every step of the way. 🏅📚🔐 Additional Information:To join our Graduate Scheme, you must:🛂 Be a UK sole national and a UK resident🛂 Be able to obtain at least Baseline Personnel Security Standard (BPSS) clearance📦 Be open to relocation or travel within the UK (relocation support is provided!)🌈 Diversity & Inclusion:We are committed to equal treatment of candidates and celebrate diversity in all forms. 👥💬We believe that bringing together people from different backgrounds and perspectives is essential to creating innovative and impactful solutions.It’s your skills, talent, and bold ideas that matter most — not where you come from. So bring your unique contributions and help us shape the future. 🌍🚀
Posted 22 days ago

Graduate Safety & Risk Consultant
Assystem
Warrington, UK
Operating within a highly regulated clean energy framework, this two-year developmental scheme trains entry-level engineers and scientists to analyze system risks, assess engineering designs, and manage safety compliance across the lifecycle of nuclear facilities.Assystem is an international company with one mission: accelerate the energy transition around the world.Every day, our 8,000+ switchers located in 12 countries (Europe, Middle East, Pacific Asia & Africa) connect their six thousand billion neurons to tackle the task of the century: switching to low-carbon energy. We are a collective committed to making the energy switch. Sharing our knowledge, expertise and values allows us to innovate and think differently about the energy transition.Here is how you can be a part of that switch:Job DescriptionOur two-year Graduate Programme is designed to get you up to speed quickly, give you exposure to live projects, and help you develop both technical and professional skills.You’ll benefit from:Access to mentors and technical expertsPeer-to-peer learning through Graduate ForumsAn upskilling framework tailored to your developmentThe opportunity to rotate across industries, customers, and locationsOver the two-year self-directed programme, you’ll gain a unique insight into the nuclear industry. This starts with broad exposure across teams and customers and evolves into discipline-focused work that aligns with your career ambitions. Within our programme, there will be opportunities to rotate through different teams and projects to help grow your knowledge, skills and behaviours. My profileWe’re looking for graduates who have (or are expecting) a degree in Engineering, Mathematics, Science, or a closely related discipline and who are interested in developing a career in nuclear safety within highly regulated environments. If you’re curious about how safety is designed into complex systems, enjoy structured problem-solving, and want to understand how risk is assessed, justified, and managed across the full lifecycle of nuclear facilities, this could be the ideal next step for you.To join our Graduate Scheme, you must be a UK sole national and a UK resident, as this is required for the type of work we do. You’ll also need to be able to obtain a minimum of Baseline Personnel Security Standard (BPSS) clearance, with some roles requiring higher levels of clearance. As part of the programme, you should also be willing to relocate or travel within the UK, and we’ll provide relocation support where needed. Diversity & InclusionWe are committed to equal treatment of candidates and foster all forms of diversity within our company. Bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and the ability to dare are what matter most. Bring your unique contributions and help us shape the future.We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.
Posted 23 days ago

Graduate Digital Engineering & Integration Engineer
Assystem
Bridgwater, UK
Operating within the critical low-carbon infrastructure sector, this two-year rotational graduate scheme focuses on integrating digital engineering tools, optimizing engineering data flows, and managing complex information systems for major nuclear projects like Hinkley Point C.⚡️💡 About AssystemAt Assystem, our mission is to accelerate the energy transition worldwide. Our 7,500 Switchers combine engineering excellence and project management expertise with advanced digital technologies. In the UK, we support landmark low-carbon infrastructure projects including Hinkley Point C, Sizewell C and emerging Small Modular Reactor (SMR) programmes. We work at the heart of complex nuclear new build initiatives, helping to deliver safe, efficient and future-ready energy solutions that power the UK’s transition to net zero.🤝 Why Join the Community of Switchers?You’ll be joining one of the three largest nuclear engineering companies in the world, working on some of the most significant clean energy projects in Europe. Assystem offers structured development, real project exposure and collaboration with experienced specialists across engineering and digital disciplines. Your future team supports nationally important infrastructure while fostering continuous learning, innovation and professional growth within a supportive environment.Job Description🚀 The Job MissionThis hybrid role is based in Bridgwater, and we can only consider candidates within commutable distance or those willing to relocate, with relocation support available.You will join our two-year Graduate Programme supporting digital engineering and integration activities. You will develop technical, systems and data skills while contributing to live nuclear projects.• Rotate across teams, projects and customers to broaden industry exposure• Support digital engineering integration across project lifecycle stages• Assist with data analysis to improve engineering information flows• Contribute to systems coordination within regulated project environments• Work with mentors and technical experts to develop discipline knowledge• Participate in Graduate Forums and structured peer learning sessions• Support digital tools implementation across engineering functions• Contribute to process improvement and data-driven decision initiatives• Develop understanding of information management in complex infrastructure projectsMy profile🛠 Essential Skills and Qualifications• Degree in Digital Engineering, Systems Engineering, Data Analytics or similar• Strong interest in digital integration within engineering environments• Understanding of how data supports engineering decision making• Analytical mindset with problem-solving capability• Strong written and verbal communication skills• Willingness to relocate or travel within the UK• Eligibility for BPSS clearance and UK sole nationality✔️ Desired Skills and Qualifications• Awareness of highly regulated industries such as nuclear or rail• Knowledge of systems thinking or lifecycle engineering principles• Experience with data visualisation or digital engineering tools• Interest in information management across complex projects
Posted 23 days ago
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